Cleaning tape for magnetic head system with magnetoresistance effect head

Abstract

A cleaning tape for a magnetic head system having a magnetoresistance effect head as a reproducing head, comprising a nonmagnetic support, and a cleaning layer containing a magnetic powder and a binder formed on one surface of said support, wherein said cleaning layer has a specific surface resistivity of 3x10<3 >to 5x10<8 >Omega/cm<2>, does not cause performance failure due to the electrostatic breakdown of the magnetic head or the generation of an electric current, which does not cause performance failure due to electrostatic breakdown of a magnetic head or the generation of an electric current.

What is claimed is:  
     
       1. A cartridge type cleaning tape for a magnetic head system having a magnetoresistance effect head as a reproducing head, said cleaning tape comprising a nonmagnetic support, a cleaning layer containing a magnetic powder and a binder formed on one surface of said support, and a backcoating layer formed on the other surface of said support, wherein 
       said cleaning tape has a total thickness of 3 to 9 μm, a product of a residual magnetic flux density and a thickness (Bru) of said cleaning layer is from 0.005 to 0.08 μTm, said cleaning layer has a specific surface resistivity of 3×10 3  to 5×10 8  Ω2/cm 2  according to JIS C 6240-1970U, and said backcoating layer has a surface roughness Ra of 3 to 10 nm.  
     
     
       2. The cartridge type cleaning tape according to  claim 1 , wherein said cleaning tape comprises at least one layer. 
     
     
       3. A cleaning cassette comprising a box-shaped case body and a cleaning tape of  claim 1  wound on a single reel installed in said case body.